whizz kid

whiz kid or wiz kid

noun

informal a person who is outstandingly successful for his or her age

Word Origin for whizz kid

C20: from whizz, perhaps influenced by wizard

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012